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CVE-2022-31117 · cross-distro fix matrix

CVE-2022-31117: UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. In versions prior to 5.4.0 an error occurring while reallocating a buffer for string decoding can cause the buffer to get freed twice. Due to how UltraJSON uses the internal decoder, this double free is imp

Affects 7 Linux releases across 7 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2022-31117 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

  • ujson→ fixed in5.4.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y ujson

Debian trixie

Source: Debian Security Tracker

  • ujson→ fixed in5.4.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y ujson

Alpine v3.20

Source: Alpine secdb

  • py3-ujson→ fixed in5.4.0-r0
    apk update && apk add --upgrade py3-ujson

Alpine v3.21

Source: Alpine secdb

  • py3-ujson→ fixed in5.4.0-r0
    apk update && apk add --upgrade py3-ujson

Alpine edge

Source: Alpine secdb

  • py3-ujson→ fixed in5.4.0-r0
    apk update && apk add --upgrade py3-ujson

Alpine v3.18

Source: Alpine secdb

  • py3-ujson→ fixed in5.4.0-r0
    apk update && apk add --upgrade py3-ujson

Alpine v3.19

Source: Alpine secdb

  • py3-ujson→ fixed in5.4.0-r0
    apk update && apk add --upgrade py3-ujson
Are YOU affected by CVE-2022-31117?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash
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